<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title>剑网三</title>
        <style>
            /* h1{
                color: green;
            }
            h2{
                color: green;
            }
            p{
                color: green;
            } */
             h1,h2,p{
                color: green;
             }
        </style>
    </head>
    <body>
        <h1>标题1</h1>
        <h2>标题2</h2>
        <p>段落1</p>
    </body>
</html>